WO2007004377A1 - Appareil d’affichage à cristaux liquides - Google Patents

Appareil d’affichage à cristaux liquides Download PDF

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Publication number
WO2007004377A1
WO2007004377A1 PCT/JP2006/310981 JP2006310981W WO2007004377A1 WO 2007004377 A1 WO2007004377 A1 WO 2007004377A1 JP 2006310981 W JP2006310981 W JP 2006310981W WO 2007004377 A1 WO2007004377 A1 WO 2007004377A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid crystal
light
crystal layer
light emission
display device
Prior art date
Application number
PCT/JP2006/310981
Other languages
English (en)
Japanese (ja)
Inventor
Ryuji Fuchikami
Yoichi Nishida
Ikuo Fuchigami
Original Assignee
Matsushita Electric Industrial Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co., Ltd. filed Critical Matsushita Electric Industrial Co., Ltd.
Priority to US11/993,374 priority Critical patent/US8350990B2/en
Priority to JP2007523371A priority patent/JP4814232B2/ja
Publication of WO2007004377A1 publication Critical patent/WO2007004377A1/fr

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0093—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means for monitoring data relating to the user, e.g. head-tracking, eye-tracking
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/0816—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
    • G02F1/13318—Circuits comprising a photodetector
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133605—Direct backlight including specially adapted reflectors
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/068—Adjustment of display parameters for control of viewing angle adjustment
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2354/00—Aspects of interface with display user
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/3406—Control of illumination source
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/3406—Control of illumination source
    • G09G3/342—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines

Definitions

  • the present invention relates to a liquid crystal display device that displays an image using reflected light.
  • a light source such as an LED or a cathode ray tube as a back light on the back of the liquid crystal layer.
  • a light source such as an LED or a cathode ray tube
  • it is general to use a low directivity, light source in order to irradiate the backlight light widely and uniformly.
  • FIG. 11 is a block diagram of a conventional liquid crystal display device using a backlight.
  • the conventional liquid crystal display device shown in FIG. 11 is provided with a light source 2 which is a back light on the back of the liquid crystal device 1, and light from the light source 2 passes through the liquid crystal device 1 to reach a viewing range 3 and is wide. It becomes visible in the range.
  • Document 1 Japanese Patent Application Laid-Open No. 2003-131230 discloses a liquid crystal display having a structure comprising a light source means Z brightness increasing means Z liquid crystal display Z first optical element Z second optical element doing.
  • the first optical element has a plurality of convex lens portions corresponding to the plurality of pixels of the liquid crystal display
  • the second optical element has the first optical element. It has a plurality of concave lens portions that offset the refractive power of the element.
  • the first optical element and the second optical element are brought into close contact to cancel out the refractive power, and when using at a wide viewing angle, the first optical element and the second optical element are used. Release and use refractive power.
  • the liquid crystal display disclosed in Document 1 states that the viewing angle can be controlled by this configuration. While the liquid crystal display disclosed in the document 1 has a fixed setting of the viewing angle range and the viewing angle direction, the liquid crystal display has a mechanism for dynamically changing them.
  • FIG. 12 is a block diagram of a conventional reflective liquid crystal device whose viewing angle can be controlled.
  • the reflection type liquid crystal device shown in FIG. 12 is provided with reflection plates 4 a, 4 b and 4 c for reflecting the extraneous light 5 on the back surface of the liquid crystal device 1.
  • the reflecting plates 4a, 4b and 4c are formed of small-angle adjustable mirrors attached with reflection angle adjusting devices, and are provided for each pixel. In this reflection type liquid crystal device, the angles of the reflectors 4a, 4b, 4c are adjusted so that the reflected light is directed toward the user.
  • the reflection type liquid crystal device disclosed in Document 2 reflects external light as display light, it has sufficient brightness over the entire power range that contributes to low power consumption. There is a problem that it is difficult to obtain, in particular, in a dark place where the outside light is scarce, and it does not function sufficiently.
  • Patent Document 1 Japanese Patent Application Laid-Open No. 2003-131230
  • Patent Document 2 Japanese Patent Application Laid-Open No. 2001-311946
  • an object of the present invention is to provide a liquid crystal display device capable of securing good visibility to the user and simultaneously reducing the light emission power of the light source.
  • the liquid crystal display device comprises a light source for emitting directional light, a reflecting portion for reflecting the light emitted by the light source, and a liquid crystal layer for transmitting the light reflected by the reflecting portion. Detects the position of the user's eye who sees the displayed image of the liquid crystal layer, and And a reflection angle control unit that controls the rotation angle of the reflection unit based on the first position information and adjusts the reflection angle of light reflected by the reflection unit.
  • the liquid crystal display device can be dynamically adjusted so that the reflected light from the reflection unit is emitted toward the position of the user's eyes based on the first position information. Therefore, the liquid crystal display device can always ensure good visibility to the user, and at the same time, it is not necessary to emit reflected light in a useless direction invisible to the user, so that power saving can be achieved. it can.
  • the reflection angle control unit periodically performs the rotation angle of the reflection portion within a certain range based on the first position information. Vibrate.
  • the liquid crystal display device of this configuration is effective when a wide viewing range is required, such as when there are a large number of users.
  • the liquid crystal display device further includes a light emission control unit adjusting at least one of the light emission intensity and the light emission angle of the light source in accordance with the rotation angle of the reflection unit in addition to the first invention.
  • the light emission angle of the light source can be adjusted together with the rotation angle of the reflection part, it is possible to reduce the reflected light emitted in the useless direction invisible to the user. Furthermore, the light source has no waste since the light emission intensity is adjusted to obtain an optimum light amount depending on the direction of the reflected light.
  • the light source has a plurality of light emission sources
  • the light emission control unit performs a plurality of light emission sources based on the first position information. Adjust at least one of the light emission intensity and the light emission angle of each of
  • the light emission control unit lights up a part of the light emission sources among the plurality of light emission sources based on the first position information. And turn off other light sources.
  • a liquid crystal display device capable of efficiently emitting reflected light by using a light source having a plurality of light emitting sources. Also, based on the first position information, a plurality of Among the light sources, unnecessary light consumption can be reduced by turning on the optimum light source for the user's position and turning off the other light sources.
  • the position detection unit detects a distance between the user and the liquid crystal layer, and detects second position information regarding the detected distance. Further, the light emission control unit adjusts the light emission intensity of the light source based on the second position information.
  • the light emission intensity is reduced if the user is near, and the light emission intensity is increased if the user is far, so that it is always preferable for the user. It is possible to provide a liquid crystal display device that provides a display with a high brightness.
  • the position detection unit detects the positions of the eyes of the plurality of users who look at the display screen of the liquid crystal layer. Further, third position information on the position of the eye is generated, and the reflection angle control unit controls the rotation angle of the reflection unit based on the third position information, and the reflection angle of the light reflected by the reflection unit is calculated.
  • the light emission control unit adjusts at least one of the light emission intensity of the light source and the light emission angle, and causes the light transmitted through the liquid crystal layer to reach each of a plurality of users.
  • the reflection angle control unit vibrates the rotation angle of the reflection unit in a certain range, and light reflected by the reflection unit is reflected. Depending on the rotation angle of the part, different parts of the liquid crystal layer are transmitted, and the liquid crystal layer presents a different display image depending on the position and angle with respect to the liquid crystal layer of the user viewing the display image of the liquid crystal layer.
  • liquid crystal display device that presents different display images depending on the viewing angle of the user.
  • one liquid crystal display device can be used to present different display images to users at the left and right.
  • the liquid crystal layer switches the display image in synchronization with the rotation angle of the reflective portion, and the user of the display image of the liquid crystal layer Depending on the position and angle with respect to the liquid crystal layer, different display images are presented.
  • the light source includes a plurality of light emitting sources.
  • the light emission control unit turns on one light emission source among the plurality of light emission sources and turns off the other light emission sources based on the first position information, and the liquid crystal layer is generated by each of the plurality of light emission sources.
  • the display image is switched in synchronization with the lighting of the light emission source, and a user who views the display image of the liquid crystal layer presents different display images depending on the position and angle with respect to the liquid crystal layer.
  • liquid crystal display device that presents different display images depending on the position and angle viewed by the user. For example, while looking at the liquid crystal display device, the position of the person can be detected for one person moving to the right in front of the liquid crystal display device, and different display images can be presented depending on the position of the person.
  • a liquid crystal display device is the liquid crystal display device according to the eleventh aspect, wherein the reflecting portion has a plurality of movable mirrors, and the reflection angle control portion has a plurality of the plurality of movable mirrors. The rotation angle of each of the movable mirrors is controlled, and the reflection angle of light reflected by each of the plurality of movable mirrors is adjusted.
  • the individual rotation angles of the plurality of movable mirrors may be small as compared with the reflection unit having one reflection mirror. Therefore, it is possible to provide a liquid crystal display device having a high response speed.
  • liquid crystal display device in addition to the eleventh invention, light reflected by the plurality of movable mirrors transmits different portions of the liquid crystal layer for each movable mirror, and the liquid crystal layer Depending on the position and angle with respect to the liquid crystal layer of the user who views the display image of the liquid crystal layer, different display images are presented.
  • the liquid crystal display device comprises a liquid crystal layer, a reflective portion disposed on the back of the liquid crystal layer with a tilt angle with the liquid crystal layer, and one end of the reflective portion, and has directivity.
  • a light source includes a light source for emitting light
  • the reflection unit includes a plurality of movable mirrors arranged in an array, and the plurality of movable mirrors reflect light emitted by the light source and emit the light toward the liquid crystal layer.
  • an efficient liquid crystal display since light can be emitted from one light source to all the movable mirrors, an efficient liquid crystal display can be provided.
  • a plurality of movable mirrors may be provided for each pixel of the liquid crystal layer.
  • a liquid crystal display device is the display device according to the thirteenth aspect, further comprising: A position detection unit that detects the position of the user's eyes and generates first position information on the position of the eyes, and the plurality of movable mirrors are rotated at their respective rotation angles based on the first position information. And adjust the reflection angle of the light reflected by each.
  • the plurality of movable mirrors can be adjusted based on the first position information so that the reflected light is emitted toward the position of the user's eyes. Therefore, good visibility can always be ensured to the user, and at the same time, it is not necessary to emit reflected light in a useless direction invisible to the user, and power can be saved accordingly.
  • liquid crystal display device capable of securing good visibility to the user and simultaneously reducing the light emission power.
  • FIG. 1 is a block diagram of a liquid crystal display device according to a first embodiment of the present invention.
  • FIG. 2 First explanatory view of the liquid crystal display device in the first embodiment of the present invention
  • FIG. 3 Second explanatory view of the liquid crystal display device according to Embodiment 1 of the present invention
  • FIG. 4 An explanatory view of a liquid crystal display device according to Embodiment 2 of the present invention.
  • FIG. 5 (a) First explanatory view of the liquid crystal display device in the third embodiment of the present invention, (b) second explanatory drawing of the liquid crystal display device in the third embodiment of the present invention
  • FIG. 6 An explanatory view of a liquid crystal display device according to Embodiment 4 of the present invention
  • FIG. 7 An explanatory view of a liquid crystal display device according to Embodiment 5 of the present invention.
  • FIG. 8 (a) Configuration of liquid crystal display according to Embodiment 6 of the present invention, (b) Configuration of liquid crystal display according to Embodiment 6 of the present invention
  • FIG. 9 (a) Configuration of small movable mirror in embodiment 6 of the present invention, (b) Configuration of small movable mirror in voltage application in embodiment 6 of the present invention
  • FIG. 10 A block diagram of a liquid crystal display device according to a seventh embodiment of the present invention
  • FIG. 11 Configuration diagram of a conventional liquid crystal display device using a backlight
  • FIG. 12 Configuration of a conventional reflective liquid crystal device whose viewing angle can be controlled
  • FIG. 1 is a block diagram of a liquid crystal display device according to Embodiment 1 of the present invention.
  • the liquid crystal display device according to the present embodiment includes a light source 10 emitting light with high directivity, a reflective portion 200 that reflects the light emitted by the light source 10, and a liquid crystal layer 30 that transmits the light reflected by the reflective portion 200.
  • the position detection unit 40 detects the position of the eye of the user 100 who sees the display image of the liquid crystal layer 30, and generates position information (hereinafter referred to as “first position information”) related to the position of the eye;
  • a reflection angle control unit 50 that controls the rotation angle of the reflection unit 200 based on position information and adjusts the reflection angle of light reflected by the reflection unit 200, and a light source according to the reflection angle of light reflected by the reflection unit 200.
  • a light emission control unit 60 for controlling the light emission intensity and the light emission angle.
  • the position detection unit 40 extracts the position of the eyes of the user 100 from the image captured by the camera 41 that captures the face portion of the user 100 who views the display image of the liquid crystal display device, and the position of the eyes And position detection unit 42 for generating position information (first position information).
  • FIGS. 2 and 3 are explanatory diagrams of a liquid crystal display device according to Embodiment 1 of the present invention.
  • the liquid crystal layer 30 and the light source 10 are attached to the base 72, and the first user 101 is located on the right front of the liquid crystal layer 30.
  • the reflecting portion 200 comprises a base 71 and a reflecting plate 20 attached thereto, and the reflecting plate 20 reflects light from the light source 10 at a certain angle (first angle 21), and the reflected light is a liquid crystal layer It passes through 30 and reaches the direction of the first user 101.
  • the camera 41 captures the face portion of the first user 101
  • the position detection camera 42 in FIG. 1 shows the image strength captured by the camera 41.
  • the position of the eyes of the first user 101 To generate the first position information.
  • the reflection angle control unit 50 sets the reflection plate 20 to the first angle 21 based on the first position information generated by the position detection unit 42
  • the light emission control unit 60 determines the light emission intensity and the light emission angle of the light source 10. Control.
  • the light emitted by the light source 10 is reflected by the reflection plate 20 and transmitted through the useless liquid crystal layer 30 to reach the first user 101, and the first user 101 is in the range of the visual field range 90
  • the display screen of the liquid crystal layer 30 can be viewed comfortably.
  • the second user 102 is located on the left front of the liquid crystal layer 30.
  • Camera 41 power
  • the face portion of the second user 102 is photographed, and the position of the second user 102 is also extracted as the image power photographed by the position detection unit 42 power camera 41 to generate first position information.
  • the reflection angle control unit 50 sets the reflection plate 20 to the second angle 22 based on the first position information generated by the position detection unit 42, and the light emission control unit 60 determines the light emission intensity and the light emission angle of the light source 10. Control.
  • the light emitted by the light source 10 is reflected by the reflecting plate 20, passes through the useless liquid crystal layer 30, and reaches the second user 102, and the second user 102 receives the visual field range 90.
  • the display screen of the liquid crystal layer 30 can be viewed comfortably.
  • the position detection unit 40 detects the position of the user's eyes and generates position information (first position information) regarding the position of the eyes.
  • the reflection angle control unit 50 controls the rotation angle of the reflecting plate 20 based on the generated first position information
  • the light emission control unit 60 controls the light emission intensity and the light emission angle of the light source 10, and the user
  • the light emitted from the light source 10 is made to reach without loss in the direction of the eyes.
  • the user can view the display screen of the liquid crystal display device within the necessary and sufficient view range 90.
  • the liquid crystal display device of this embodiment can prevent the light from the light source 10 from reaching the area other than the visual field range required by the user, it is possible to suppress the irradiation of unnecessary light and waste. Power consumption can be reduced.
  • the position detection unit 40 is the first regarding the position of the eyes of the first user 101.
  • the first user 101's distance from the liquid crystal layer 30 is detected, and position information (hereinafter referred to as “second position information”) related to the detected first user 101's distance is generated.
  • the light emission control unit 60 controls the light emission intensity of the light source 10 according to the distance from the liquid crystal layer 30 of the first user 101 based on the second position information.
  • the emission control unit 60 reduces the emission intensity of the light source 10 when the first user 101 is located near the liquid crystal layer 30, and when the first user 101 is located far from the liquid crystal layer 30, the light source Increase the emission intensity of 10.
  • the liquid crystal display device of this embodiment can provide the first user 101 with a display screen with a suitable brightness at all times.
  • the position detection unit 40 similarly generates first position information and second position information.
  • the liquid crystal display device of this embodiment is a second user 1.
  • the block diagram of the liquid crystal display device in the second embodiment of the present invention is the same as FIG.
  • FIG. 4 is an explanatory view of a liquid crystal display device in the second embodiment of the present invention.
  • the same components as in FIG. 2 will be omitted by using the same reference numerals.
  • the camera 41 includes the face portions of the first user 101 located on the right front of the liquid crystal layer 30 and the second user 102 located on the front center left.
  • the position detection unit 42 extracts the position of the eyes of the first user 101 and the position of the eyes of the second user 102 as well as the image power taken by the camera 41, and relates to the positions of the respective eyes.
  • Position information (hereinafter referred to as "third position information") is generated.
  • the reflection angle control unit 50 periodically vibrates the reflecting plate 20 in the range of the first angle 21 to the third angle 23 based on the third position information generated by the position detection unit 42.
  • the light emission control unit 60 vibrates the light emission direction and the light emission intensity of the light source 10 in synchronization with the vibration of the reflection plate 20.
  • the light emitted by the light source 10 is reflected by the reflector 20 and transmitted through the liquid crystal layer 30, and then reaches the first user 101 and the second user 102 in the range of the visual field range 90. .
  • the liquid crystal display device of the present embodiment can provide a good visual field range 90 for two users located in front of the display screen. Furthermore, since the light from the light source 10 is not irradiated except in the visual field range 90, waste of power consumption can be eliminated.
  • the position detection unit 40 generates the third position information by paying attention to the position of the leftmost user's eye and the position of the rightmost user's eye.
  • the angle control unit 50 controls the reflecting plate 20, the light emission control unit 60 controls the light source 10, and the liquid crystal display device of this embodiment provides a good view range for three or more users in front.
  • the block diagram of the liquid crystal display device in the third embodiment of the present invention is the same as FIG.
  • the light source 10 has two light sources, and the light emission control unit 60 controls these two light sources.
  • FIG. 5 (a) is a first explanatory view of a liquid crystal display device in the third embodiment of the present invention.
  • FIG. 5 (b) is a second explanatory view of the liquid crystal display device in the third embodiment of the present invention.
  • FIGS. 5 (a) and 5 (b) the same components as those shown in FIG.
  • Light source 10 of the present embodiment has two light sources, ie, first light source 11 and second light source 12.
  • the face portion of the first user 101 located on the right front of the camera 41 power liquid crystal layer 30 is photographed, and the position detection unit 42 also uses the first image power photographed by the camera 41.
  • the position of the eye of the person 101 is extracted, and position information (first position information) on the position of the eye is generated.
  • the reflection angle control unit 50 controls the rotation angle of the reflection plate 20 to adjust the reflection angle of the light reflected by the reflection plate 20.
  • the emission control unit 60 turns on the first light source 11 and controls its emission intensity and emission angle. As a result, the light reflected by the reflector 20 passes through the liquid crystal layer 30, and then reaches the first user 101 within the visual field range 90a.
  • the light emission control unit 60 simultaneously turns off the second light source 12.
  • the first user 101 located on the front right of the liquid crystal layer 30 disappears, and instead, the second user 102 located on the left front of the liquid crystal layer 30 is present.
  • the camera 41 captures the face portion of the second user 102.
  • the position detection unit 42 extracts the position of the eye of the second user 102 of the image power captured by the camera 41, and generates new position information (new first position information) regarding the position of the eye.
  • the reflection angle control unit 50 controls the rotation angle of the reflecting plate 20.
  • the light emission control unit 60 turns on the second light source 12 to control the light emission intensity and the light emission angle. As a result, after passing through the light power liquid crystal layer 30 reflected by the reflecting plate 20, the second user 102 is reached within the visual field range 90 b.
  • the light emission control unit 60 turns off the first light source 11 at the same time.
  • the camera 41 is the first user 101 and the second user 102.
  • the position detection unit 42 extracts the position of the eyes of the first user 101 and the position of the eyes of the second user 102 as well as the image power photographed by the camera 41, Generate position information (third position information) about each eye position.
  • the reflection angle control unit 50 controls the reflecting plate 20, and at the same time, the light emission control unit 60 turns on the first light source 11 and the second light source 12, and the respective light emission intensities And control the light emission angle.
  • the reflection angle control unit 50 control the reflection plate 20 so as to be substantially parallel to the liquid crystal layer 30.
  • the first light source 11 and the second light source 12 are provided on the left and right sides of the back surface of the liquid crystal layer 30.
  • the rotation angle of the reflection plate 20 can be limited to a narrow range as compared with the first embodiment of the present invention.
  • the height of the base 71 can be short, and the liquid crystal display can be further miniaturized.
  • the range of the rotation angle at which the reflecting plate 20 has to be rotated is narrow, it can contribute to power saving.
  • the block diagram of the liquid crystal display device in the fourth embodiment of the present invention is the same as FIG.
  • the reflection unit 200 is configured of a plurality of movable mirrors
  • the reflection angle control unit 50 controls the plurality of movable mirrors.
  • FIG. 6 is an explanatory diagram of a liquid crystal display device in the fourth embodiment of the present invention.
  • the same components as in FIG. 2 will be omitted by using the same reference numerals.
  • the reflection section 200 of the liquid crystal display device of the present embodiment includes a base 71 and a base 71. It has a plurality of small movable mirrors 81, 82, 83 attached.
  • the movable mirrors 81, 82, 83 can independently change the reflection angles of light reflected by the movable mirrors 81, 82, 83 under the control of the light emission control unit 60.
  • the position detection unit 42 extracts the position of the eyes of the first user 101 as well as the image power photographed by the camera 41, and the eyes Generate position information (first position information) related to the position of. Then, based on the first position information generated by the position detection unit 42, the reflection angle control unit 50 independently sets the reflection angle of the light reflected by each of the movable mirror 81, the movable mirror 82, and the movable mirror 83.
  • the light emission control unit 60 controls the light emission intensity and the light emission angle of the light source 10.
  • the light reflected by the movable mirror 81 is transmitted through a part of the liquid crystal layer 30, and reaches the first user 101, and the light reflected by the movable mirror 82 is The light transmitted through another portion of the liquid crystal layer 30 and arriving at the first user 101 and reflected by the movable mirror 83 is transmitted through yet another portion of the liquid crystal layer 30, and is used first Person 101 arrives.
  • a visual field range 91 in which the entire liquid crystal layer 30 can be viewed is secured.
  • the light source 10 may emit light at an irradiation angle at which all of the movable mirrors 81 to 83 can be irradiated at one time, or at a smaller irradiation angle, the movable mirror 81, the movable mirror 82, the movable mirror 83 may be irradiated individually in circulation.
  • the liquid crystal display device of this embodiment can control the light emission range of the light source 10 so as to secure the necessary and sufficient field of view for the user. To reduce power consumption.
  • the block diagram of the liquid crystal display device in the fifth embodiment of the present invention is the same as FIG.
  • the liquid crystal layer 30 is composed of a plurality of liquid crystal layers arranged side by side.
  • FIG. 7 is an explanatory view of a liquid crystal display device according to the fifth embodiment of the present invention.
  • the same components as in FIG. 2 will be omitted by using the same reference numerals.
  • the liquid crystal layer 30 is a liquid aligned in the lateral direction.
  • the liquid crystal layer A31, the liquid crystal layer B32, and the liquid crystal layer C33 display different images.
  • the light source 10 changes the light emission intensity and the light emission angle in conjunction with the position of the reflection plate 20 under the control of the light emission control unit 60.
  • the liquid crystal display device of the present embodiment changes the position of the reflection plate 20 to the angle A26, the angle B27, and the angle C28 to allow the user A103, the user B104, and the user C105 respectively. Different display images can be presented.
  • the position detection unit 42 detects the position of the person's eyes and generates first position information.
  • the reflection angle control unit 50 controls the rotation angle of the reflection plate 20 based on the first position information generated by the position detection unit 42, adjusts the reflection angle of the light reflected by the reflection plate 20, and emits light.
  • the control unit 60 controls the light emission intensity and the light emission angle of the light source 10 in synchronization with the rotation angle of the reflection plate 20.
  • the liquid crystal display device of the present embodiment can present different display images depending on the position and angle viewed by the user.
  • the light source 10 is Since it is sufficient to irradiate light only in a limited area in the direction in which the user is located, unnecessary light is not irradiated. Therefore, a power saving liquid crystal display device can be realized.
  • FIGS. 8 (a) and 8 (b) are block diagrams of the liquid crystal display device in the sixth embodiment of the present invention.
  • a liquid crystal layer 130 a liquid crystal layer 130, a base 140 disposed on the back of the liquid crystal layer 130 with a tilt angle, and a plurality of movable mirrors 120 arranged in an array on the base 140.
  • a light source 110 that emits a substantially parallel light beam towards the movable mirror 120.
  • the plurality of movable mirrors 120 are made small.
  • the liquid crystal display device of this embodiment can be used in combination with the position detection unit 40, the reflection angle control unit 50, and the light emission control unit 60 of Embodiment 1 of the present invention shown in FIG.
  • the reflection angle control unit 50 generates the position information (the first position information) on the position of the user's eyes generated by the position detection unit 40.
  • the light emission control unit 60 controls the light emission intensity of the light source 110 according to the rotation angle of the movable mirror 120.
  • the small movable mirror 120 of the present configuration can be realized, for example, by a configuration in which a small mirror fabricated by a semiconductor microfabrication technology called MEMS (Micro Electro-Mechanica 1 System) is operated by electromagnetic action.
  • MEMS Micro Electro-Mechanica 1 System
  • FIG. 9 (a) is a block diagram of a small movable mirror in the sixth embodiment of the present invention.
  • the small movable mirror 120 of this embodiment is mounted on the upper surface of the member B125 and the conductor layer B126 constituting the base, the insulating layer 127 sandwiched therebetween, and the member B125.
  • the member A122, the conductor layer A123, the support 124, and the member B125 have conductivity and are kept at the same potential.
  • FIG. 9 (b) is a block diagram of a small movable mirror at the time of voltage application in the sixth embodiment of the present invention.
  • FIG. 9B when a voltage is applied between the conductor layer A123 and the conductor layer B126, the open end of the member A122 approaches the conductor layer B126 by an electromagnetic action. That is, as shown in FIG. 9 (a), a voltage is applied between the member B125 and the conductor layer B126. If not, no force acts between the conductor layer A123 and the conductor layer B126, so that the member A122 is positioned substantially parallel to the conductor layer B126.
  • FIG. 9B when a voltage is applied between the conductor layer A123 and the conductor layer B126, the open end of the member A122 approaches the conductor layer B126 by an electromagnetic action. That is, as shown in FIG. 9 (a), a voltage is applied between the member B125 and the conductor layer B126. If not, no force acts between the conductor layer A123 and the conductor layer B126, so that the member A
  • the reflection unit 200 is configured by arranging a plurality of small movable mirrors 120 as described above in an array on the base 140.
  • the rotation angle of the movable mirror 120 is set so that the light reflected by the movable mirror 120 is transmitted through the liquid crystal layer 130 and emitted to the right front of the liquid crystal layer 130.
  • the rotation angle of the movable mirror 120 is set such that the light reflected by the movable mirror 120 is transmitted through the liquid crystal layer 130 and emitted to the left front of the liquid crystal layer 130.
  • the substantially parallel light beam emitted by the light source 110 is reflected by the movable mirror 120 in an arbitrary direction to transmit the liquid crystal layer 130. This is how it works.
  • the liquid crystal display device of this embodiment can be used in combination with the position detection unit 40, the reflection angle control unit 50, and the light emission control unit 60 according to the first embodiment of the present invention.
  • FIG. 10 is a block diagram of a liquid crystal display device according to a seventh embodiment of the present invention.
  • the same components as in FIG. 1 will be assigned the same reference numerals and descriptions thereof will be omitted.
  • the liquid crystal display device of the present embodiment further includes a display switching unit 70 for switching the display screen of the liquid crystal layer 30 in addition to the liquid crystal display device in the first embodiment of the present invention shown in FIG.
  • the position detection unit 40 detects the position of the eye of the user 100 who views the display image of the liquid crystal layer 30, and detects position information (first position information) regarding the position of the eye Generate.
  • the reflection angle control unit 50 controls the rotation angle of the reflection unit 200 based on the first position information. And adjust the reflection angle of the light reflected by the reflection unit 200.
  • the light emission control unit 60 controls the light emission intensity and the light emission angle of the light source 10 in accordance with the reflection angle of the light reflected by the reflection unit 200. The above is the same as the liquid crystal display device according to the first embodiment of the present invention shown in FIG.
  • the display switching unit 70 newly added controls the rotation angle of the reflecting unit 200 performed by the reflection angle control unit 50, or the light emission of the light source 10 performed by the light emission control unit 60.
  • the display screen of the liquid crystal layer 30 is switched in synchronization with the control. Two typical applications of this embodiment are described below.
  • the display switching unit 70 switches the display screen of the liquid crystal layer 30 in synchronization with the control of the rotation angle of the reflecting unit 200 performed by the reflection angle control unit 50.
  • the first application example will be described with reference to FIGS. 2 and 3.
  • the reflection angle control unit 50 follows the first position information generated by the position detection unit 40, The rotation angle of the reflecting plate 20 is controlled to the first angle 21, and the light emission control unit 60 controls the light emission intensity and the light emission angle of the light source 10.
  • the display switching unit 70 switches the screen displayed by the liquid crystal layer 30 to the first display screen in synchronization with the first angle 21 which is the rotation angle of the reflecting plate 20 set by the reflection angle control unit 50. .
  • the first user 101 sees the first display screen.
  • the reflection angle is determined according to the new first position information generated by the position detection unit 40.
  • the control unit 50 controls the rotation angle of the reflection plate 20 to the second angle 22, and the light emission control unit 60 controls the light emission intensity and the light emission angle of the light source 10.
  • the display switching unit 70 switches the screen displayed by the liquid crystal layer 30 to the second display screen in synchronization with the second angle 22 which is the rotation angle of the reflecting plate 20 set by the reflection angle control unit 50. .
  • the second user 102 sees the second display screen.
  • the display switching unit 70 switches the display screen of the liquid crystal layer 30 in synchronization with the rotation angle of the reflecting plate 20.
  • the liquid crystal display device of this embodiment can provide different display screens depending on the position of the user with respect to the liquid crystal layer 30.
  • the display switching unit 70 uses the first display screen when the rotation angle is in the range of 0 to 90 degrees.
  • the display switching unit 70 switches to the second display screen, and when the rotation angle is in the range of 120 to 180 degrees, the display switching unit 70 is the third display. It is preferable to switch to the screen.
  • the light source 10 has a plurality of light emission sources
  • the display switching unit 70 controls the light emission intensity of the plurality of light emission sources performed by the light emission control unit 60 (turn on and off In synchronization with), the display screen of the liquid crystal layer 30 is switched.
  • the light emission control unit 60 is operated according to the first position information generated by the position detection unit 40.
  • the first light source 11 is turned on to control its emission angle, and the reflection angle control unit 50 controls the rotation angle of the reflection plate 20.
  • the display switching unit 70 switches the screen displayed by the liquid crystal layer 30 to the first display screen in synchronization with the lighting of the first light source 11 set by the light emission control unit 60.
  • the first user 101 sees the first display screen.
  • the display switching unit 70 can switch the screen displayed by the liquid crystal layer 30 to the second display screen in synchronization with the lighting of the second light source 12 set by the light emission control unit 60. As a result, the second user 102 sees the second display screen.
  • the display switching unit 70 switches the display screen of the liquid crystal layer 30 in synchronization with the lighting of the light emission source controlled by the light emission control unit 60.
  • the liquid crystal display device of this embodiment can provide different display screens depending on the position of the user with respect to the liquid crystal layer 30.
  • the display switching unit 70 may switch the display screen in one-to-one correspondence with a plurality of light emitting sources, or some light emitting sources may be selected.
  • the display screen may be switched by dividing the group or by each group.
  • a light source for emitting highly directional light a light source provided with a reflector having a parabolic surface (see light source 10 in FIG. 2), a light source provided with a lens, a semiconductor laser light source, etc. Available.
  • position detection unit 42 of position detection unit 40 shown in FIG. 1 correlates the image of the user's face taken with camera 41 with the pattern image of the human face prepared in advance.
  • the position of the user's eye is extracted by searching the position with high degree of correlation.
  • the surface temperature of the user can be measured by an infrared camera, and the position of the user's face can be extracted from the temperature distribution.
  • using a transmitter that generates ultrasonic pulses and three ultrasonic sensors that receive reflected waves the time difference between the reflected waves of ultrasonic pulses reaching the ultrasonic sensors is measured, and the user's It is difficult to detect the position.
  • the liquid crystal display device can be used, for example, in an information terminal device having a liquid crystal display screen, such as a cellular phone, a personal computer, a display device, and a field of application thereof.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Liquid Crystal (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

L’invention concerne un appareil d’affichage à cristaux liquides comprenant une source lumineuse (10) pour émettre une lumière de forte directivité, une plaque réfléchissante (20) permettant de réfléchir la lumière émise depuis la source lumineuse (10), une couche de cristaux liquides (30) laissant passer la lumière réfléchie sur la plaque réfléchissante (20), un détecteur de position (40) permettant de détecter une position oculaire du spectateur (100) qui visualise une image d’affichage et permettant de générer des informations de position sur la position oculaire, un contrôleur d’angle de réflexion (50) pour contrôler l’angle de rotation de la plaque réfléchissante (20) sur la base des informations de position, et un contrôleur d’émission de lumière (60) permettant de contrôler l’intensité d’émission de lumière et l’angle d’émission de lumière de la source lumineuse (10) selon l’angle de rotation de la plaque réfléchissante (20). Cette configuration peut irradier de manière efficace la lumière émise par la source lumineuse (10) vers les yeux du spectateur, augmentant ainsi la visibilité de l’appareil à cristaux liquides et réduisant la consommation.
PCT/JP2006/310981 2005-07-01 2006-06-01 Appareil d’affichage à cristaux liquides WO2007004377A1 (fr)

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US11/993,374 US8350990B2 (en) 2005-07-01 2006-06-01 Liquid crystal display apparatus
JP2007523371A JP4814232B2 (ja) 2005-07-01 2006-06-01 液晶表示装置

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2457690A (en) * 2008-02-21 2009-08-26 Sharp Kk Viewer position tracking display
CN101499253B (zh) * 2008-01-28 2011-06-29 宏达国际电子股份有限公司 输出画面的调整方法与装置
EP2362373A1 (fr) * 2010-02-12 2011-08-31 Vestel Elektronik Sanayi ve Ticaret A.S. Personnalisation d'angle de visualisation des écrans de rétroéclairage à DEL
CN103123768A (zh) * 2011-11-18 2013-05-29 鸿富锦精密工业（深圳）有限公司 旋转式广告看板
JP2013539057A (ja) * 2010-07-06 2013-10-17 ジャガー・カーズ・リミテッド ディスプレイ装置及びディスプレイ方法
US8625844B2 (en) 2007-12-31 2014-01-07 Htc Corporation Method and device for adjusting output frame
JP2016528533A (ja) * 2013-06-27 2016-09-15 コチ・ウニヴェルシテシＫｏｃ Ｕｎｉｖｅｒｓｉｔｅｓｉ 眼鏡型画像表示装置
JP2023058418A (ja) * 2021-10-13 2023-04-25 怡利電子工業股▲ふん▼有限公司 視線追跡を行う指向性バックライトディスプレイ装置

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102231255B (zh) * 2008-09-16 2015-09-23 联想(北京)有限公司 节能显示器以及电子设备
US8816714B2 (en) * 2009-09-24 2014-08-26 Beijing Boe Optoelectronics Technology Co., Ltd. Testing apparatus and testing method for LCD
CN102237020B (zh) * 2010-04-26 2014-04-23 鸿富锦精密工业（深圳）有限公司 液晶显示屏的可视角度设置系统及方法
CN102339595A (zh) * 2010-07-28 2012-02-01 鸿富锦精密工业（深圳）有限公司 显示装置及其显示方向调整方法
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US20140232737A1 (en) * 2012-02-24 2014-08-21 Beijing Lenovo Software Ltd. Display adjustment method, system and electronic device
CN103680310B (zh) * 2012-09-10 2015-12-02 联想(北京)有限公司 一种干涉式反射性显示屏调整方法及系统
KR101937446B1 (ko) 2012-04-19 2019-01-11 삼성디스플레이 주식회사 액정 표시 장치
CN103165064A (zh) * 2012-04-27 2013-06-19 深圳市金立通信设备有限公司 基于人眼与屏幕距离自动调整显示屏分辨率的防窥视系统及方法
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US9110354B2 (en) * 2012-09-20 2015-08-18 Palo Alto Research Center Incorporated Steerable illumination source for a compact camera
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US8922666B2 (en) * 2012-12-27 2014-12-30 Panasonic Intellectual Property Corporation Of America Information communication method
SE536990C2 (sv) * 2013-01-22 2014-11-25 Crunchfish Ab Förbättrad spårning av ett objekt för styrning av ett beröringsfritt användargränssnitt
JP2014206638A (ja) * 2013-04-12 2014-10-30 株式会社ジャパンディスプレイ 立体表示装置
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US20150228226A1 (en) * 2014-02-13 2015-08-13 Nvidia Corporation Power-efficient steerable displays
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CN114779464A (zh) * 2022-05-24 2022-07-22 北京有竹居网络技术有限公司 光学信号调制器、控制方法及投影设备

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6287314A (ja) * 1985-10-15 1987-04-21 Toshiba Corp 基板装置
JP2001311946A (ja) * 2000-02-22 2001-11-09 Matsushita Electric Ind Co Ltd 液晶表示装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6287314U (fr) * 1985-11-20 1987-06-04
JPH04100019A (ja) * 1990-08-20 1992-04-02 Seiko Epson Corp 表示装置
JP3378465B2 (ja) * 1997-05-16 2003-02-17 株式会社東芝 発光装置
US6795137B1 (en) 1999-04-26 2004-09-21 Microsoft Corporation Methods and apparatus for implementing transmissive display devices
JP2001083510A (ja) * 1999-09-16 2001-03-30 Mitsubishi Chemicals Corp 面状光源装置
JP2003131230A (ja) 2001-10-29 2003-05-08 Canon Inc 表示装置
JP4100019B2 (ja) 2002-03-29 2008-06-11 フジノン株式会社 内視鏡の観察窓洗浄用流体供給機構
DE10311306A1 (de) * 2003-03-14 2004-09-23 Carl Zeiss Bildanzeigeeinrichtung
KR100971392B1 (ko) * 2003-12-24 2010-07-21 엘지디스플레이 주식회사 액정표시장치
TWI323368B (en) * 2004-04-09 2010-04-11 Hon Hai Prec Ind Co Ltd A back light module

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6287314A (ja) * 1985-10-15 1987-04-21 Toshiba Corp 基板装置
JP2001311946A (ja) * 2000-02-22 2001-11-09 Matsushita Electric Ind Co Ltd 液晶表示装置

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8625844B2 (en) 2007-12-31 2014-01-07 Htc Corporation Method and device for adjusting output frame
CN101499253B (zh) * 2008-01-28 2011-06-29 宏达国际电子股份有限公司 输出画面的调整方法与装置
GB2457690A (en) * 2008-02-21 2009-08-26 Sharp Kk Viewer position tracking display
JP2009217259A (ja) * 2008-02-21 2009-09-24 Sharp Corp 単一ビューディスプレイ
US8558853B2 (en) 2008-02-21 2013-10-15 Sharp Kabushiki Kaisha Single view display
EP2362373A1 (fr) * 2010-02-12 2011-08-31 Vestel Elektronik Sanayi ve Ticaret A.S. Personnalisation d'angle de visualisation des écrans de rétroéclairage à DEL
JP2013539057A (ja) * 2010-07-06 2013-10-17 ジャガー・カーズ・リミテッド ディスプレイ装置及びディスプレイ方法
US9396701B2 (en) 2010-07-06 2016-07-19 Jaguar Land Rover Limited Display apparatus and method
JP2017083846A (ja) * 2010-07-06 2017-05-18 ジャガー ランド ローバー リミテッドＪａｇｕａｒ Ｌａｎｄ Ｒｏｖｅｒ Ｌｉｍｉｔｅｄ ディスプレイ装置及びディスプレイ方法
US9779692B2 (en) 2010-07-06 2017-10-03 Jaguar Land Rover Limited Display apparatus and method
CN103123768A (zh) * 2011-11-18 2013-05-29 鸿富锦精密工业（深圳）有限公司 旋转式广告看板
JP2016528533A (ja) * 2013-06-27 2016-09-15 コチ・ウニヴェルシテシＫｏｃ Ｕｎｉｖｅｒｓｉｔｅｓｉ 眼鏡型画像表示装置
JP2023058418A (ja) * 2021-10-13 2023-04-25 怡利電子工業股▲ふん▼有限公司 視線追跡を行う指向性バックライトディスプレイ装置

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CN101194204A (zh) 2008-06-04
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JP4814232B2 (ja) 2011-11-16
JPWO2007004377A1 (ja) 2009-01-22

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